This document shows how to insert data into a database table using Visual Basic .NET. It creates a database called "ejercicio" and a table called "PRUEBA" with various columns. A module is created to handle the database connection. A form is created with textboxes and buttons to insert data. When the "btngrabar" button is clicked, a SQL insert statement is executed to add the data from the textboxes to the "PRUEBA" table.

1. INSERCION DE DATOS A UNA TABLA<br />VISUAL BASIC.NET<br />CREATE DATABASE EJERCICIO<br />USE EJERCICIO<br />CREATE TABLE PRUEBA<br />(CODIGO VARCHAR (5), <br />NOMBRE NVARCHAR (25), <br />APELLIDO NVARCHAR(25),<br />DIRECCION NVARCHAR(25), <br />TELEFONO FLOAT(53))<br />SELECT * FROM PRUEBA<br />CREAR UN MODULO<br />Imports System.Data.sqlclient<br />Module CONEXION<br /> Public cn As New SqlConnection(quot;
server = (local); database = ejercicio; user id = sa; password=123quot;
)<br />End Module<br />Imports System.Data.sqlclient<br />Public Class Form1<br /> Dim da As SqlDataAdapter<br /> Dim ds As DataSet<br /> Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load<br /> End Sub<br /> Private Sub btngrabar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btngrabar.Click<br /> Dim sql As String = quot;
insert into PRUEBA values(@codigo, @nombre,@apellido, @direccion, @telefono)quot;
<br /> Dim cmd As New SqlCommand(sql, cn)<br /> Try<br /> cmd.CommandType = CommandType.Text<br /> cmd.Parameters.Add(quot;
@codigoquot;
, SqlDbType.VarChar, 5).Value = Me.txtcodigo.Text<br /> cmd.Parameters.Add(quot;
@nombrequot;
, SqlDbType.NVarChar, 25).Value = Me.txtnombres.Text<br /> cmd.Parameters.Add(quot;
@apellidoquot;
, SqlDbType.NVarChar, 25).Value = Me.txtapellidos.Text<br /> cmd.Parameters.Add(quot;
@direccionquot;
, SqlDbType.NVarChar, 20).Value = Me.txtdirecion.Text<br /> cmd.Parameters.Add(quot;
@telefonoquot;
, SqlDbType.Float, 53).Value = Me.txttelefono.Text<br /> CN.Open()<br /> cmd.ExecuteNonQuery()<br /> MessageBox.Show(quot;
REGISTRO INSERTADO CORRECTAMENTEquot;
)<br /> Catch ex As Exception<br /> End Try<br /> End Sub<br /> Private Sub btnnuevo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnnuevo.Click<br /> Me.txtcodigo.Text = quot;
quot;
<br /> Me.txtnombres.Text = quot;
quot;
<br /> Me.txtapellidos.Text = quot;
quot;
<br /> Me.txtdirecion.Text = quot;
quot;
<br /> Me.txttelefono.Text = quot;
quot;
<br /> End Sub<br />End Class<br />